Device for selectively stacking sheets

ABSTRACT

A device ( 10 ) for stacking sheets and a device for depositing notes, which comprises a plurality of such devices ( 10 ), are shown. The device ( 10 ) comprises at least one carrying face ( 16, 18 ) for carrying a sheet stack, the carrying face itself or the surface of a sheet stack located on it forming a stack face for depositing the sheets. It comprises, furthermore, a roll-on device with a first roller ( 30 ) which can be adjusted transversely with respect to its longitudinal axis along an adjustment path which is directed parallel with respect to the stack face, and with at least one first belt ( 26 ) which is led from above around the first roller and, parallel with respect to the stack face, to a first fastening point ( 28 ) in the region of one end of the adjustment path, at which fastening point said first belt is secured, the stack face ( 16 ) being pressed from below against the at least one first belt ( 26 ) in order to retain the sheet stack. Finally, the device ( 10 ) comprises a sheet supply device which is suitable for transporting a sheet with an edge toward one end of the stack face, from which end it is rolled onto the stack face in the direction of the other end of the latter, the sheet supply device being adjustable along the adjustment path between a first position, in which it can transport the sheet ( 80 ) with the edge ( 82 ) toward one end of the stack face ( 24 ), and at least one further position, in which it can lead the sheet ( 80 ) with the edge ( 82 ) toward one end of a further stack face ( 24 ) or into a transport device ( 76 ) for the further transport of the sheet ( 80 ).

The present invention relates to a device for selectively stackingsheets, in particular banknotes or check forms, according to thepreamble of claim 1.

A device of this type comprises at least one carrying face for carryinga sheet stack, the carrying face itself or the surface of a sheet stacklocated on it forming a stack face for depositing the sheets. Itcomprises, furthermore, a roll-on device with a first roller which canbe adjusted transversely with respect to its longitudinal axis along anadjustment path, and with at least one first belt which is led fromabove around the first roller and, parallel with respect to the stackface, to a first fastening point in the region of one end of theadjustment path, at which fastening point said first belt is secured,the stack face being pressed from below onto the at least one first beltin order to retain the sheet stack. Finally, the device comprises asheet supply device which is suitable for transporting a sheet with anedge toward one end of the stack face, from which end it is rolled ontothe stack face in the direction of the other end of the latter.

The invention relates, furthermore, to a device for depositing notes.

The term “at least one” first belt refers to the fact that, instead of asingle first belt, in particular, a group of a plurality of first beltsmay be used, which are arranged parallel with respect to one another andare guided in the same way.

Devices of the type initially mentioned are known from DE 101 05 242 C1,EP 0 470 329 A1 and EP 0 747 866 B1. In these known devices, the sheetsare rolled by the first roller, by means of the at least one first beltled around the latter, in the direction of the other end of the stackface, in that the sheets are transported with an edge toward one end ofthe stack face, and then the first roller is rolled along the adjustmentpath from the first end of the stack face in the direction of the secondend of the stack face, the at least one first belt laid around the firstroller being rolled off on the stack face, and thereby the sheet stack,which is pressed against the first belt from below by springs, beingretained.

In DE 101 05 242 C1 and EP 0 747 866 B1, the sheet supply device isformed by at least one pair of transport rollers, between the outersurface areas of which is formed a roller nip through which the sheetsare led. The pair of transport rollers is arranged in such a way that asheet led through the roller nip is guided with an edge toward one endof the stack face.

In EP 0 470 329 A1, the carrying face for carrying the sheet stack isarranged vertically adjustably in a housing.

The first roller is fastened to a slide adjustable along the adjustmentpath. The first belt is secured to the housing near one end of the stackface and is led from there around the first roller, over a row of fixeddeflecting rollers and through under the housing to a second rollerlikewise fastened to the slide, around said second roller and to afurther fastening point near the other end of the stack face.Furthermore, between the first and the second roller is located a thirdroller which is parallel with respect to these and over which runs anendless belt which is tensioned via two further deflecting rollers and,together with the first belt, forms a belt transport which transports asheet guided between the two belts with an edge toward one end of thestack face. In this embodiment, therefore, the sheet supply device isformed by a belt transport, one belt of which is formed by the at leastone first belt.

In practice, a plurality of devices of the type initially mentioned areoften used in one appliance. For example, in automatic cash depositingmachines, a plurality of devices of a type initially mentioned aretypically used in order to deposit notes or check forms in stack form invarious boxes. Generally, for each sheet stack to be formed, that is tosay for each of the boxes present, one of these devices is required,that is to say each sheet stack to be formed is assigned its own roll-ondevice and its own sheet supply device. Furthermore, at least onedistributing guide in a sheet transport of the appliance is usuallyprovided for each sheet stack to be formed, a sheet being supplied tothe associated sheet supply device via said distributing guide. Thismultiplicity of components required leads to high costs and to a highspace requirement.

EP 0 470 329 A1 gives an exemplary embodiment in which two sheet stacksare arranged one behind the other along the adjustment path of the firstroller, so that two sheet stacks can be formed, using only one roll-ondevice and only one sheet supply device. The special type of roll-ondevice of EP 0 470 329 A1 makes it possible to deposit a sheet on onestack or the other by suitable selection of the time point at which itis introduced into the sheet supply device.

However, the roll-on device in EP 0 470 329 A1 is relatively complicatedand space-consuming and, if only for those reasons, is not advantageous.Furthermore, an essential disadvantage is that, if a roll-on and supplydevice is to be used jointly for two sheet stacks to be formed, thefirst belt has to be led through under both sheet stacks and thereforeprohibits a vertical transport of sheets between the two sheet stacks,thus signifying a considerable restriction in the construction of anappliance having a plurality of such roll-on devices.

The object on which the present invention is based is to specify adevice of the type initially mentioned which solves at least theproblems mentioned.

This object is achieved, according to the invention, in that the supplydevice, having a sheet held in it, can be adjusted along the adjustmentpath between a first position, in which it can transport the sheet withthe edge toward one end of the stack face, and at least one furtherposition, in which it can guide the sheet with the edge toward one endof a further stack face or into a transport device for the furthertransport of the sheet.

As compared with the devices of DE 101 05 242 C1 and EP 0 747 866 B1,the stationary supply devices of which are intended solely for thesupply of sheets to exactly one stack face, the supply device of theinvention thus has an at least twofold function. In addition to theconventional function of supply to a stack face, the adjustable supplydevice of the device according to the invention can guide the sheet heldin it to a 1 further stack face, thus corresponding to a sortingfunction, or can guide it into a transport device for further transport,with the result that a branching in the transport path is implemented.

In both instances, as compared with conventional devices, there is noneed for a distributing guide, such as is normally required for sortingfunctions or branchings. Moreover, in the former case, as compared withconventional devices, there is no need for a supply device, because onesupply device in this case serves for supplying sheets to two stackfaces.

Although the device of EP 0 470 329 A1 likewise has a sorting function,this is nevertheless not achieved by means of an adjustable supplydevice, but, instead, by the selection of the time point at which thesheet is introduced into the stationary supply device. Moreover, abranching function by transfer to a transport device is neither providednor is to be implemented in a simple way in EP 0 470 329 A1. Asubstantial problem with this case is that a belt of the supply deviceof EP 0 470 329 A1 surrounds said device to great extents and thereforeobstructs further transport.

Preferably, the first roller and the supply device are fastened to acarriage or slide moveable along the adjustment path. The supply devicethen requires no additional drive for adjustment along the adjustmentpath.

Preferably, a plurality of carrying faces are arranged along theadjustment path, which each form a stack face for sheets.

Preferably, the device comprises, furthermore, a transport device whichis arranged between two stack faces and to which a sheet can betransferred from the supply device when the supply device assumes atransfer position contained within the adjustment path.

In an advantageous development, the roll-on device comprises a secondroller which is parallel to the first roller and which can be adjustedjointly with the first roller along the adjustment path, a roller nip isformed between the first and the second roller, the at least one firstbelt is led, starting from a first belt store, from above through theroller nip around the first roller, and at least one second belt isprovided, which, starting from a second belt store, is led from abovethrough the roller nip, around the second roller and, parallel withrespect to the stack face, to a second fastening point in the region ofthe other end of the adjustment path, at which end said second belt issecured. By using at least one first and at least one second belt, thesheet stack is always held by at least one of the belts independently ofthe current position of the first and of the second roller.

Preferably, the first and the second belt stores are formed in each caseby a storage roller, onto which the at least one first or the at leastone second belt can be wound.

In an advantageous development, the storage rollers are mounted in eachcase on a winding shaft, one of the winding shafts is coupled to a drivemotor and, via a gear, to the other winding shaft, and the storagerollers are prestressed into their respective winding position.

In a preferred embodiment, the supply device is formed by a belttransport. Preferably, in this case, the supply device has a third and afourth roller, the axis of which is identical to the axis of the firstand the second roller and around which are laid at least one third andat least one fourth belt which form transport belts for the belttransport. This developed device thereby becomes simple and compact as awhole.

Preferably, in this case, the diameter of the third and of the fourthroller is greater than the diameter of the first and of the secondroller by at least so much that a sheet transported between the at leastone third and the at least one fourth belt through the roller nipbetween the first and the second roller does not come into contact inthe region of the roller nip with the at least one first and secondbelt. This is advantageous in order to avoid conflict in the directionof rotation of the in each case rolling-up first or second belt with thetransport of the sheet in the belt transport of the sheet supply device,as is explained in more detail with reference to the exemplaryembodiment described below.

Preferably, the third and the fourth roller are mounted fixedly in termsof rotation respectively on a first and a second shaft, and the firstand the second roller are mounted freely rotatably respectively on thefirst and the second shaft. In this case, preferably, a drivinggearwheel is mounted in each case on the first shaft and on the secondshaft and is coupled to the respective shaft via a freewheel in such away that each driving gearwheel can drive the associated shaft in onlythe direction of rotation which causes a supply of the sheet.

Furthermore, a coupling gearwheel is preferably mounted in each case onthe first and on the second shaft, said coupling gearwheels being inengagement with one another. In an advantageous development, a fixeddriving gearwheel is provided, which is in engagement with one of thedriving gearwheels of the shafts when the supply device is in thetransfer position. The fixed driving gearwheel is preferably coupled tothe transport device. Furthermore, at least one rack is arranged alongat least part of the adjustment path in such a way that one of thedriving gearwheels comes into engagement with said rack when theassociated shaft is moved along the adjustment path past the rack.

In this development, the supply device does not require its own drive,since, in the transfer position, it is driven by the transport devicevia the fixed driving gearwheel and, during adjustment, is driven alongthe adjustment path, that is to say, in particular, during the rollingon of a sheet, via the racks and one of the driving gearwheels mountedon the first and on the second shaft.

Further advantages and features of the solution according to theinvention may be gathered from the following description which explainsthe invention by means of an exemplary embodiment in conjunction withthe accompanying drawings in which:

FIG. 1 shows a perspective view of a device for stacking sheetsaccording to a development of the invention,

FIG. 2 shows a side view of the device of FIG. 1,

FIG. 3 shows a top view of the device of FIG. 1,

FIG. 4 shows a diagrammatic illustration of a supply device and of partsof a roll-on device at the commencement of the rolling of a banknoteonto a banknote stack,

FIG. 5 shows the elements of FIG. 4 shortly before rolling on isterminated, and

FIG. 6 shows a diagrammatic illustration of a device for depositingnotes.

FIG. 1 shows a simplified illustration of a device 10 for stackingsheets according to a development of the invention.

FIG. 2 shows a simplified side view and FIG. 3 a simplified top view ofthe same device 10.

The device 10 serves for stacking banknotes in a box 12 or 14. In eachof the boxes 12 and 14 is arranged a carrying face 16 and 18 prestressedupward by springs 20. The carrying faces 16 and 18 serve for carrying ineach case a banknote stack 22 (see FIG. 2), said banknote stacks havingbeen omitted in FIG. 1 and FIG. 3 for the sake of clarity. The surfacesof the banknote stacks 22 form in each case a stack face 24 on whichfurther banknotes are to be deposited.

The device 10 comprises, furthermore, two first belts 26 which aresecured at a fastening point 28 and are led from there, parallel withrespect to the stack face 24, in each case to a first roller 30 (seeFIG. 4, FIG. 5), around the latter from below and further on in eachcase to a first storage roller 32, said storage rollers being mounted ona first winding shaft 34. Two second belts 36 are secured in a similarway at fastening points 38, from which they are led, parallel withrespect to the other stack face 24, in each case to a second roller 40,around the latter from below and further on in each case to a secondstorage roller 42, said storage rollers being mounted on a secondwinding shaft 44.

The first rollers 30 are mounted freely rotatably on a first shaft 46and the second rollers 40 are mounted freely rotatably on a second shaft48. The first and the second shaft 46, 48 are mounted jointly in a slidewhich is not shown in the figures for the sake of clarity. The slide canbe moved along an adjustment path between the first storage roller 32and the second storage roller 42.

The first and the second belt 26, 36, the slide with the first and thesecond shaft 46, 48 and with the first rollers 30 and second rollers 40mounted on it, and also the first and the second storage roller 32, 42,form the essential elements of a roll-on device, such as has alreadybeen described in detail in DE 101 05 242 C1, so that more detailedparticulars of this do not need to be explained here.

Furthermore, three third rollers 50 are mounted fixedly in terms ofrotation on the first shaft 46, and three fourth rollers 52 are mountedfixedly in terms of rotation on the second shaft 48. Vertically abovethe third rollers 50 are located three fifth rollers 54 which aremounted freely rotatably on a third shaft 56 (see FIG. 2).

Both the third shaft 56 and the first and the second shaft 46, 48 aremounted in the slide (not shown). Said third shaft is omitted in FIG. 1and FIG. 3 for the sake of clarity.

Vertically above the fourth rollers 52 are located three sixth rollers58 which are mounted rotatably on a fourth shaft 60 which has likewisebeen omitted in FIG. 1 and FIG. 3. The fourth shaft 60 is likewisemounted in the slide (not shown).

A third belt 62 is laid around each of the third rollers 50 and thefifth roller 54 arranged in each case vertically above it, and a fourthbelt 64 is laid around each of the fourth rollers 52 and the sixthroller 58 arranged in each case vertically above it. The third and thefourth belts 62, 64 are endless belts which jointly form a belttransport. This belt transport constitutes an embodiment of the sheetsupply device mentioned initially.

Mounted at the two ends of the first and of the second shaft 46, 48 arecoupling gearwheels 66 which engage one into the other and thus couplethe first and the second shaft 46, 48 to one another.

The first driving gearwheel 68 (concealed in FIG. 1, see FIG. 3) isarranged at the rear end of the first shaft 46 in FIG. 1, a seconddriving gearwheel 70 is arranged at the front end of the second shaft 48in the illustration of FIG. 1. The first and the second drivinggearwheels 60, 70 are coupled respectively to the first and second shaft46, 48 via a freewheel in such a way that they can drive the associatedshaft 46 and 48 in only the direction of rotation which corresponds to asheet supply, that is to say in the direction of rotation in which thoseportions of the third and fourth belt 62, 64 which lie against oneanother run from the top downward. This direction of rotation isindicated in FIG. 1 by the arrow 71 with regard to the second drivinggearwheel 70.

As can be seen in FIGS. 1 and 3, along the adjustment path are arrangeda first rack 72 and a second rack 74, into which the first and thesecond gearwheels 68, 70 engage respectively in a suitable position ofthe slide (not shown).

As can be seen in FIG. 2, a transport device 76, which is formed by avertical belt transport, is arranged between the banknote boxes 12 and14.

The functioning of the device 10 is described below. In FIG. 1,

FIG. 2 and FIG. 3, the slide (not shown) is in a middle position betweenthe two banknote boxes 12 and 14. The slide itself is not shown in thefigures, but only its components essential to describe functioning, tobe precise the first and the second shaft 46, 48 together with thecoupling gearwheels 66 and driving gearwheels 68 and 70 arranged on saidshafts, the first and second rollers 30, 40 mounted freely rotatably onthe first and the second shaft, and the sheet supply device which isformed from the third rollers 50, fourth rollers 52, fifth rollers 54,sixth rollers 58 and the third and fourth belts 62, 64.

In this middle position of the slide, the sheet supply device is in atransfer position, in which a banknote transported downward between thethird and the fourth belt 62, 64 is transferred to the transport device76 and is transported further on by the latter downward through betweenthe boxes 12 and 14. In this transfer position of the supply device, agearwheel 78 (see FIG. 2) engages on the first driving gearwheel 68 andthereby drives the transport belts of the supply device, that is to saythe third and fourth belts 62, 64.

If a banknote is to be deposited on the banknote stack 22 in the box 12on the left in the figures, at a predetermined time point, at which theleading edge of the banknote is located in the supply deviceapproximately in the middle between the upper rollers (that is to say,the fifth and sixth roller 56, 58) and the lower rollers (that is tosay, the third and fourth roller 50, 52), the first belt 26 begins to bewound up by the first winding shaft 34 being driven. The first windingshaft 34 and the second winding shaft 44 are coupled to one another viaa toothed belt (not shown) in such a way that the second belt 36 isunwound simultaneously. In this case, the slide is drawn along theadjustment path in the direction of the left box 12 by the first belt26.

As soon as the slide leaves this middle position, the fixed gearwheel 78(FIG. 2) comes out of engagement with the first driving gearwheel 68. Atthe same time, the second driving gearwheel 70 comes into engagementwith the second rack 74 (FIG. 1, FIG. 3) and is driven by the secondrack 74 during the further adjustment of the slide. The second drivinggearwheel 70, in turn, drives the second shaft 48 together with thefourth rollers 52 mounted fixedly in terms of rotation on the latter. Atthe same time, the first shaft 46, together with the third rollers 50mounted fixedly in terms of rotation on it, is driven via the couplinggearwheels 66. Thus, overall, the supply device is driven by themovement of the slide, that is to say, ultimately, by the first belt 26being wound up.

During the leftward movement of the slide, therefore, the banknote istransported vertically downward in the supply device, specifically insuch a way that the banknote impinges with its leading edge on the rightend of the banknote stack 22 in the left box 12 and subsequently,starting from the right end, is rolled on in the direction of the leftend of the banknote stack 22.

FIGS. 4 and 5 show two snapshots during the rolling of the banknote ontothe banknote stack 22.

The directions of rotation of the belts and the directions of rotationof the rollers are in this case indicated by the nearby arrows. FIG. 4shows a snapshot at the commencement of rolling on. This shows abanknote 80 which is transported vertically downward between the thirdbelt 62 and the fourth belt 64 and just impinges with its leading edgeonto the right margin of the banknote stack 22. In this case, theleading edge 82 of the banknote 80 is caught on the banknote stack 22when the slide is moved further to the left, so that, as shown in FIG.4, the leading end of the banknote 80 is bent round and subsequentlyrolled onto the surface of the banknote stack 22 by the fourth rollers52 and the second rollers 40. In this case, the second belt 36 is rolledoff on the banknote 80, with the result that the banknote stack 22 isheld.

In the illustration of FIG. 4, the first roller 30 and the second roller40 are concealed respectively by the third roller 50 and the fourthroller 52 and are therefore depicted by broken lines. As can be seen inFIG. 4, the diameters of the third and of the fourth roller 50, 52 aresomewhat greater than those of the first and of the second roller 30,40. Whereas the outer surface areas of the third and fourth rollers 50,52 lie so closely to one another that the third belt 62 and the fourthbelt 64 lie snugly against one another, a somewhat larger roller nip isformed between the first roller 30 and the second roller 40. Owing tothe smaller size of the first and of the second roller 30, 40, the firstand the second belt 26, 36 do not come into contact with the banknote 80in the region of the roller nip. This is important because, on accountof the direction of rotation of the first roller 30, the first belt 26would counteract the downward transport of the banknote 80 and thebanknote 80 could possibly be upset. However, the size differencesbetween the first and the second roller 30, 40, on the one hand, and ofthe third and of the fourth roller 50, 52 on the other hand, areillustrated, greatly exaggerated, in FIG. 4 for illustrative purposes.In practice, even a very small diameter difference is sufficient.

FIG. 5 shows a snapshot shortly before the rolling on of the banknote 80is terminated. As can be seen in this, the banknote 80 is held on thebanknote stack 22 by the second belt 36. The slide can subsequently bemoved back into the middle position. In this case, the supply device isno longer driven, since the second driving gearwheel 70 has a freewheeland does not transmit any torque to the second shaft 66 when the slideis being moved back.

A banknote is deposited on the banknote stack 22 of the right box 14according to the same principle, except that, instead of the first belt26, the second belt 36 is wound up on the associated second storageroller 42.

As became clear from the above description, the device 10 describedserves not only for rolling banknotes onto banknote stacks, but also forsorted depositing which also affords the possibility of a verticalfurther transport of a banknote.

FIG. 6 shows a device 84 for depositing notes, which contains three ofthe devices 10 described above. The devices 10 are arranged verticallyone above the other in such a way that a note 82 can be transferred outof the transport device 76 of the in each case upper device 10(uppermost in FIG. 6) directly to the supply device of the next lowerdevice 10 (the middle one in FIG. 6). A deposited note 82, which isconveyed into the sheet supply device of the uppermost device 10 by atransport device 86 not specified in any more detail, can subsequentlybe deposited in a controlled manner in one of six boxes, without asingle distributing guide being required. Thus, using the devices 10described, the device 82 becomes very simple in construction andunsusceptible to faults.

LIST OF REFERENCE SYMBOLS

-   10 Device for stacking sheets-   12 Box-   14 Box-   16 Carrying face-   18 Carrying face-   20 Spring-   22 Banknote stack-   24 Stack face-   26 First belt-   28 Fastening point-   30 First roller-   32 Storage roller-   34 Winding shaft-   36 Second belt-   38 Fastening point-   40 Second roller-   42 Storage roller-   44 Winding shaft-   46 First shaft-   48 Second shaft-   50 Third roller-   52 Fourth roller-   54 Fifth roller-   56 Third shaft-   58 Sixth roller-   60 Fourth shaft-   62 Third belt-   64 Fourth belt-   66 Coupling gearwheel-   68 First driving gearwheel-   70 Second driving gearwheel-   71 Direction of rotation arrow-   72 First rack-   74 Second rack-   76 Transport device-   78 Fixed gearwheel-   80 Banknote-   82 Leading edge of the banknote-   84 Device for depositing notes 4-   86 Transport device

1. A device for stacking sheets, in particular banknotes or check forms,comprising at least one carrying face for carrying a sheet stack, thecarrying face itself or the surface of a sheet stack located on itforming a stack face for depositing the sheets, comprising a roll-ondevice with a first roller which can be adjusted transversely withrespect to its longitudinal axis along an adjustment path which isdirected parallel with respect to the stack face, and with at least onefirst belt which is led from above around the first roller and, parallelwith respect to the stack face, to a first fastening point in the regionof one end of the adjustment path, at which fastening point said firstbelt is secured, the stack face being pressed from below against the atleast one first belt in order to retain the sheet stack, and comprisinga sheet supply device which is suitable for transporting a sheet with anedge toward one end of the stack face, from which end it is rolled ontothe stack face in the direction of the other end of the latter, whereinthe supply device, together with a sheet held in it, can be adjustedalong the adjustment path between a first position, in which it cantransport the sheet with the edge toward one end of the stack face, andat least one further position, in which it can lead the sheet with theedge toward one end of a further stack face or into a transport devicefor the further transport of the sheet.
 2. The device as claimed inclaim 1, wherein the first roller and the supply device are fastened toa carriage or slide moveable along the adjustment path.
 3. The device asclaimed in claim 1, wherein a plurality of carrying faces, which eachform a stack face for sheets, are arranged along the adjustment path. 4.The device as claimed in claim 3, wherein the device comprises atransport device which is arranged between two stack faces and to whicha sheet can be transferred from the supply device when the supply deviceassumes a transfer position contained within the adjustment path.
 5. Thedevice as claimed in claim 1, wherein the roll-on device comprises asecond roller which is parallel to the first roller and which can beadjusted jointly with the first roller along the adjustment path, inthat a roller nip is formed between the first and the second roller, inthat the at least one first belt is led, starting from a first beltstore, from above through the roller nip and around the first roller,and in that at least one second belt is provided, which, starting from asecond belt store, is led from above through the roller nip, around thesecond roller and, parallel with respect to the stack face, to a secondfastening point in the region of the other end of the adjustment path,at which end said second belt is secured.
 6. The device as claimed inclaim 5, wherein the first and the second belt store are formed in eachcase by one storage roller, onto which the at least one first or the atleast one second belt can be wound.
 7. The device as claimed in claim 6,wherein the storage rollers are mounted in each case on a winding shaft,one of the winding shafts is coupled to a drive motor and, via a gear,to the other winding shaft, and the storage rollers are prestressed intotheir respective winding direction.
 8. The device as claimed in claim 1,wherein the supply device is formed by a belt transport.
 9. The deviceas claim in claim 8, wherein the supply device has a third and a fourthroller, the axis of which is identical to the axis of the first and ofthe second roller and around which are laid at least one third and atleast one fourth belt which form transport belts for the belt transport.10. The device as claimed in claim 9, wherein the diameter of the thirdand of the fourth roller is greater than the diameter of the first andof the second roller by at least so much that a sheet transportedbetween the at least one third and the at least one fourth belt throughthe roller nip between the first and the second roller does not comeinto contact in the region of the roller nip with the at least one firstand the at least one second belt.
 11. The device as claimed in claim 9,wherein the third and the fourth roller are mounted fixedly in terms ofrotation respectively on a first and a second shaft, and the first andthe second roller are mounted freely rotatably respectively on the firstand the second shaft.
 12. The device as claimed in claim 11, wherein adriving gearwheel is mounted in each case of the first shaft and on thesecond shaft and is coupled to the respective shaft via a freewheel insuch a way that each driving gearwheel can drive the associated shaft inonly the direction of rotation which causes a supply of the sheet. 13.The device as claimed in claim 11, wherein a coupling gearwheel ismounted in each case on the first and on the second shaft, said couplinggearwheels being in engagement with one another.
 14. The device asclaimed in claim 12, wherein a fixed driving gearwheel is provided,which is in engagement with one of the driving gearwheels when thesupply device is in the transfer position.
 15. The device as claimed inclaim 14, characterized in that the fixed driving gearwheel is coupledto the transport device.
 16. The device as claimed in claim 12, whereinat least one rack is arranged along at least part of the adjustment pathin such a way that one of the driving gearwheels comes into engagementwith said rack when the associated shaft is moved along the adjustmentpath past the rack.
 17. A device for depositing notes, wherein it has afirst device and at least one second device as claimed in claim 1, whichare arranged in such a way that the transport device of the first devicecan transfer a banknote to the supply device of the second device.